Docker: Container command '/bin/sh' not found - docker

When i try to build docker images using the command docker build -t opencv:2.4.11 . I get following error.
Sending build context to Docker daemon 189.8 MB
Step 1 : FROM ubuntu:trusty
---> b72889fa879c
Step 2 : RUN apt-get update
---> Running in 689f34e138c2
Container command '/bin/sh' could not be invoked.
My docker client and server version are:
Client:
Version: 1.11.0
API version: 1.23
Go version: go1.5.4
Git commit: 4dc5990
Built: Wed Apr 13 18:34:23 2016
OS/Arch: linux/amd64
Server:
Version: 1.11.0
API version: 1.23
Go version: go1.5.4
Git commit: 4dc5990
Built: Wed Apr 13 18:34:23 2016
OS/Arch: linux/amd64
Any idea?
I have softlinked my /var/lib/docker directory to one of directories present in my home. And that directory is owned by root. Is this the source of problem?
Before moving and softlinking it was fine. I ran out of space in my root partition and so I had to change it to my home partition.
And my home partition is ext4 file system.
Regards

It looks badly hosed.
I have softlinked my /var/lib/docker directory to one of directories present in my home.
I would recommend amending the daemon parameters to include -g your_other_directory instead. Then stop and restart Docker.
If it still doesn't work, delete both Docker directories, re-install, and start at the -g step again.

Related

Give access to a ROOT directory to a NON-ROOT user in docker windows container to install software

I want to run Docker inside a docker container where I have mounted the docker pipe in run cmd. When i run it as a non-root user which i have created it was not able to run the server which was in C:\Program Files (root dir)
Client:
Version: 20.10.21
API version: 1.41
Go version: go1.18.7
Git commit: baeda1f
Built: Tue Oct 25 18:08:16 2022
OS/Arch: windows/amd64
Context: default
Experimental: true
error during connect: This error may indicate that the docker daemon is not running.: Get "http://%2F%2F.%2Fpipe%2Fdocker_engine/v1.24/version": open //./pipe/docker_engine: Access is denied.

Docker cannot access any Internet URL during build

I have the following Dockerfile:
FROM mcr.microsoft.com/windows/servercore:ltsc2019
SHELL ["powershell", "-Command"]
RUN Invoke-WebRequest -UseBasicParsing http://www.google.com
On my Windows 10 machine, I run docker build . and get the following:
Basically, Docker is unable to access any Internet URL I try. I can run the same Dockerfile on my Windows Server 2019 Core machine and everything works fine. I'm running Docker version 18.09.2 and haven't updated it recently. This was working a few days ago, so it's a new issue. I've tried restarting the Docker engine and also rebooting. I've also tried a docker system prune. Any ideas what broke this? I'd rather not reinstall Docker if possible.
Docker Info:
Client: Docker Engine - Community
Version: 18.09.2
API version: 1.39
Go version: go1.10.8
Git commit: 6247962
Built: Sun Feb 10 04:12:31 2019
OS/Arch: windows/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 18.09.2
API version: 1.39 (minimum version 1.24)
Go version: go1.10.6
Git commit: 6247962
Built: Sun Feb 10 04:28:48 2019
OS/Arch: windows/amd64
Experimental: false
Update: Seems to be DNS related. I can ping things.
This is a known issue with ltsc2019 images (https://github.com/Azure/AKS/issues/1029). Put following at the start of your dockerfile or before entrypoint
Set-DnsClientServerAddress -InterfaceIndex (Get-NetAdapter).IfIndex -ServerAddresses ('8.8.8.8')

docker run command hangs until the container stops

I am trying to run a PPTP VPN server in a Docker container. but when I do the command docker run pptpserver, or all different container I have tried, It will work but my cursor is just flashing and does not let me do any other command.
I tried a super simple one, just copying test.sh in the container and run it, and it prints a confined times test, but I want a container that's in the background.
test.sh:
#/bin/bash
while :; do
echo "test"
sleep 2
done
The only way I can stop it is to stop the container in another terminal. Is there something I can do to just run a container like it shouts do, in the background.
# docker version
Client:
Version: 17.12.1-ce
API version: 1.35
Go version: go1.10.1
Git commit: 7390fc6
Built: Wed Apr 18 01:23:11 2018
OS/Arch: linux/amd64
Server:
Engine:
Version: 17.12.1-ce
API version: 1.35 (minimum version 1.12)
Go version: go1.10.1
Git commit: 7390fc6
Built: Wed Feb 28 17:46:05 2018
OS/Arch: linux/amd64
Experimental: false
To prevent this, you should start a container in detached mode by specifying -d=true or just -d option. If this is not specified, docker defaults to foreground mode which attaches the console to the process inside your container's standard input, output and standard error, which makes it appear as if your terminal is "hanging".
So try:
docker run -d pptpserver
You can read more about this behaviour in the Docker Run Reference documentation.

Can't get Docker image after windows installation

I just installed docker on my windows 10 server,
Installation went fine but I can't seem to get images from central docker repo.
those are my specs:
c:\>docker version
Client:
Version: 1.13.0
API version: 1.25
Go version: go1.7.3
Git commit: 49bf474
Built: Wed Jan 18 16:20:26 2017
OS/Arch: windows/amd64
Server:
Version: 1.13.0
API version: 1.25 (minimum version 1.12)
Go version: go1.7.3
Git commit: 49bf474
Built: Wed Jan 18 16:20:26 2017
OS/Arch: linux/amd64
Experimental: true
This is my test command:
c:\>docker run hello-world
Unable to find image 'hello-world:latest' locally
docker: Error response from daemon: Get https://registry-1.docker.io/v2/: remote error: tls: access denied.
See 'docker run --help'.
This is what I get when running curl on that repo:
c:\>curl -k https://registry-1.docker.io/v2/
{"errors":[{"code":"UNAUTHORIZED","message":"authentication required","detail":null}]}
I guess that there is something to do with my company DNS/Network,
did anyone encounter this issue on windows?
You need to set your proxy env variables.
[Environment]::SetEnvironmentVariable("HTTP_PROXY", "http://username:password#proxy:port/", [EnvironmentVariableTarget]::Machine)
Restart-Service docker
Check this for reference: https://learn.microsoft.com/en-us/virtualization/windowscontainers/manage-docker/configure-docker-daemon
And more common:
https://docs.docker.com/engine/admin/systemd/#http-proxy
As I replied to #Falco Alexander I got some PowerShell errors, But The proxy was already set in my env. variables.
What finally did the trick was to set the proxy inside the docker GUI:
And then restart the service.

Docker Compose (docker-compose) couldn't connect to docker daemon on Windows Server 2016 TP5

I am trying to get docker-compose to work on Windows Server 2016 TP5. I have installed Docker Desktop for Windows (not Docker Toolbox) as a service, which works perfectly. I have downloaded the latest docker-compose for windows from https://dl.bintray.com/docker-compose/master/ and put it in the same path as Docker (after unblocking the downloaded file, and renaming it to docker-compose.exe.
When I run the docker-compose up (in Powershell as an Administrator), I get the following error:
ERROR: Couldn't connect to Docker daemon. You might need to install
Docker:
https://docs.docker.com/engine/installation/
Here are the docker and docker-compose information on my machine:
Docker:
Client:
Version: 1.12.1
API version: 1.24
Go version: go1.6.3
Git commit: 23cf638
Built: Thu Aug 18 17:52:38 2016
OS/Arch: windows/amd64
Server:
Version: 1.12.1
API version: 1.24
Go version: go1.6.3
Git commit: 23cf638
Built: Thu Aug 18 17:52:38 2016
OS/Arch: windows/amd64
Docker Compose:
docker-compose version 1.9.0dev, build f65f89a
You might want to try to set your DOCKER_HOST:
$ENV:DOCKER_HOST="npipe://\\.\pipe\docker_engine"
Alternatively, when registering the engine, you can make it listen on TCP too:
dockerd.exe -H npipe:////./pipe/docker_engine -H localhost:2375 --register-service
There are more details on this Compose issue

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